From: marc.zyngier@arm•com (Marc Zyngier)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC PATCH] ARM: sched_clock: allow sched_clock to be selected at runtime
Date: Wed, 10 Aug 2011 09:59:24 +0100 [thread overview]
Message-ID: <4E42486C.5030605@arm.com> (raw)
In-Reply-To: <20110810085210.GC1831@n2100.arm.linux.org.uk>
On 10/08/11 09:52, Russell King - ARM Linux wrote:
> On Wed, Aug 10, 2011 at 09:28:02AM +0100, Marc Zyngier wrote:
>> I'd be all for that, and I've waited a long time (April?) before posting
>> that patch, hoping that a consensus would emerge on the clocksourse
>> patches.
>>
>> So far, nothing.
>>
>> We need a solution to this problem. I really don't care which patch gets
>> merged, so if someone thinks they can get the clocksource patches
>> further, then by all mean, please do it.
>
> I'll say it again, because you seem to have missed it. I don't think
> intimately tying sched_clock and clocksource stuff together is a good
> idea, especially as there's platforms where sched_clock is higher
> resolution than the clocksource. Plus, if it really is the case that
> any clocksource can be used for sched_clock, then we wouldn't have
> sched_clock at all.
>
> So no, I don't think tying the two together is a good idea. Especially
> when it means that some platforms will end up with a lower resolution
> and/or slower implementation.
Fair enough. I'll carry on with my current patch then.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2011-08-10 8:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-09 17:13 [RFC PATCH] ARM: sched_clock: allow sched_clock to be selected at runtime Marc Zyngier
2011-08-09 20:54 ` Linus Walleij
2011-08-09 21:20 ` Rob Herring
2011-08-09 21:28 ` Eric Miao
2011-08-09 21:33 ` Russell King - ARM Linux
2011-08-10 8:28 ` Marc Zyngier
2011-08-10 8:52 ` Russell King - ARM Linux
2011-08-10 8:59 ` Marc Zyngier [this message]
2011-08-10 7:13 ` Linus Walleij
2011-08-10 11:49 ` Jamie Iles
2011-08-10 14:16 ` Marc Zyngier
2011-08-11 8:25 ` Russell King - ARM Linux
2011-08-11 8:49 ` Jamie Iles
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